why republicans say the president wants to go over the fiscal cliff. >>> and imagine someone breaking into your home and ransacking your christmas tree, stealing your electronics. meet the family who encountered a real life grinch and caught the thief on camera. it's an unbelievable story, and the family will join us live in this hour. good morning, everybody. on a christmas eve, welcome to "starting point." i'm alina cho in new york. da dana, good morning. >> good morning. alina. i'm dana bash in washington. it's christmas eve. "starting point" begins right now. >>> and our starting point, an american contractor in kabul shot and killed earlier this morning by a woman wearing an afghan police uniform. it happened inside kabul's police headquarters, and it's the latest in a string of suspected green on blue attacks. pentagon correspondent barbara starr is working her sources, and she joins us from washington. barbara, we have seen a lot of these attacks. correct me if i'm wrong, this is the first time it's happened with a woman. >> reporter: i think that is absolutely correct, dana. u